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RoadsterSport 'Super Q' Muffler (NC 2005-2015)

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  • Regular price $869.00
  • Will be in stock after
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NOTE: Freight can not be calculated at checkout for this product. You can still checkout and pay for this product however freight will be invoiced seperately after your order has been processed. If you would like a freight quote first. Please email or call us.

PREMIUM ADJUSTABLE Sound MX5 Exhaust. Promised for years and we finally got it done, a revised version of the famous RoadsterSport Q that is even more successful at controlling sound for customers making modifications such as high-flow headers and superchargers. It was mostly customers with superchargers requesting an upgraded version of the Q, but we also got some requests for this special version of the Q from some customers running our RoadsterSport Max Power header and some running our PPE Long Tube header. Sounds the same under acceleration…but even more successful at controlling boom/drone on deceleration. Dimensions are the same as regular Q, and just 170g heavier than standard Q.

All the other features are the same as the standard Q, see information below copied from product description for the standard Q.

This attenuation design is a premium “NO-DRONE” choice, great for those with manual transmission and especially for those with the AUTOMATIC transmission (which tends to keep the RPMS in the lower ranges). By using smooth mandrel bent 2.5 inch tubing to redirect the flow for a side entrance to the muffler we engineered a sound wave attenuation first chamber to knock down volume level dramatically while maintaining a flow-through design. This attenuation chamber design muffler is the most mild and mellow on an otherwise stock MX5 …about 10 to 15% louder than stock…with a deep sporty burble anytime you hit the go pedal but quiet when you are just cruising.

This premium MX5 muffler is also the BEST choice for those who plan such additional mods as a supercharger or header change (a header change unleashes a massive amount of additional sound). Our latest and best dyno results for an otherwise stock MX5….and for modified MX5’s with the header change all the way to supercharged were obtained with the RoadsterSport Q muffler. ALL THE FLOW, without the noise!

Yes, simple BOLT ON that bolts to our midpipe or the factory midpipe! INCLUDES New Gasket and fresh Nuts and Bolts to make your install super easy. Weight is about 11kg with baffles removed, 12kg with baffles installed (stock muffler is over 13kg).

Finished in tips which INCLUDE our exclusive baffle cone inserts which are REMOVEABLE and allow you to set the sound to sporty…or quiet. Also available are optional packed baffles (see separate product description) with which you can quiet it down even more for those using a header or supercharger, or race midpipe, etc. This system is 10% to 15% louder than the stock MX5 muffler on an otherwise stock MX5 exhaust system….and only 25% over stock sound level when used with our complete 2.5 inch RoadsterSport header and 2.5 inch RoadsterSport midpipe. Baffles are retained by small hex bolts inserted from well under each tip.

Made in the USA with a LIFETIME WARRANTY. Fits all 2005 and newer MX5’s with manual or automatic transmission, soft top or retractable hardtop.

Installation of this MX5 exhaust is SUPER EASY…just two bolts! You don’t even need to jack up the car, this installation can be done in your driveway! This MX5 exhaust is guaranteed for as long as you own your MX5.



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